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Unit 6- year 4

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    Basic machines
  •   Study   Slideshow
  • What is this?
    A wheel
  •  15
  • What is a pulley?
    A machine to help lift heavy things
  •  15
  • What is a simple machine?
    A machine with one or two parts
  •  15
  • What is this?
    A screw
  •  15
  • What is an inclined plane?
    A ramp to help lift things
  •  15
  • A ramp has____ part
    one
  •  15
  • What are these?
    Scissors
  •  15
  • What are these?
    Gears
  •  15
  • What are these?
    Brakes
  •  15
  • What is a machine?
    Something to help make work easier
  •  15
  • What is electricity?
    A source of energy
  •  15
  • What does a battery do?
    Change chemicals into energy
  •  15
  • What is effort?
    Force applied to make something work
  •  15